1225224708171 has 8 divisors (see below), whose sum is σ = 1633638219840. Its totient is φ = 816813834312.

The previous prime is 1225224708167. The next prime is 1225224708179. The reversal of 1225224708171 is 1718074225221.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1225224708171 - 2² = 1225224708167 is a prime.

It is a super-2 number, since 2×1225224708171² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1225224708179) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1079220 + ... + 1901358.

It is an arithmetic number, because the mean of its divisors is an integer number (204204777480).

Almost surely, 2^{1225224708171} is an apocalyptic number.

1225224708171 is a deficient number, since it is larger than the sum of its proper divisors (408413511669).

1225224708171 is an equidigital number, since it uses as much as digits as its factorization.

1225224708171 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1318905.

The product of its (nonzero) digits is 125440, while the sum is 42.

The spelling of 1225224708171 in words is "one trillion, two hundred twenty-five billion, two hundred twenty-four million, seven hundred eight thousand, one hundred seventy-one".